12180716 has 6 divisors (see below), whose sum is σ = 21316260. Its totient is φ = 6090356.

The previous prime is 12180703. The next prime is 12180719. The reversal of 12180716 is 61708121.

It is not an unprimeable number, because it can be changed into a prime (12180719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1522586 + ... + 1522593.

It is an arithmetic number, because the mean of its divisors is an integer number (3552710).

Almost surely, 2^12180716 is an apocalyptic number.

It is an amenable number.

12180716 is a deficient number, since it is larger than the sum of its proper divisors (9135544).

12180716 is a wasteful number, since it uses less digits than its factorization.

12180716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3045183 (or 3045181 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 12180716 is about 3490.0882510332. The cubic root of 12180716 is about 230.0863947647.

Adding to 12180716 its reverse (61708121), we get a palindrome (73888837).

The spelling of 12180716 in words is "twelve million, one hundred eighty thousand, seven hundred sixteen".